Fluid testing device



FIG. 1 is a front perspective view of a fluid testing device according to our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view of thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top elevation view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a rear perspective view thereof shown with a first environment; and,

FIG. 10 is a front perspective view thereof shown with a second environment.

The broken lines immediately adjacent the shaded areas represent the bounds of the claim, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a fluid testing device, as shown and described. 